SCADA.What s out there?

Transcription

1 SCADA.What s out there? Ed Dunn Precision Systems Our Goal Today To prepare you with the knowledge / questions necessary to make the correct decision as to what type of system best suits your needs 1

2 SCADA Terms / Definitions SCADA Supervisory Control And Data Acquisition SCADA SCADA Terms / Definitions Supervisory Control And Data Acquisition Really Big Problem Problem Pump Station 2

3 SCADA Terms / Definitions SCADA Telemetry I/O Transmission and measurement of data from a remote site Inputs and Outputs Discussed with respect to the SCADA / Telemetry system Analog vs. Digital / Discretionary SCADA Terms / Definitions Analog Digital 3

4 SCADA Terms / Definitions SCADA Telemetry I/O Inputs and Outputs Analog vs. Digital / Discretionary & CTU Remote & Central Telemetry Units CTU 4

5 SCADA Terms / Definitions SCADA I/O Analog vs. Digital / Discretionary & CTU PLC Programmable Logic Controller PC without a screen SCADA Terms / Definitions Programmable PLC Logic Controller 5

6 SCADA Terms / Definitions SCADA Telemetry Analog vs. Digital / Discretionary Inputs and Outputs & CTU PLC / Programmable Logic Controller HMI Human Machine Interface SCADA Terms / Definitions 6

7 What does a SCADA system do? Collects Transmits Processes to be Collected How many places do you need to collect information from? 7

8 to be Collected What do you want to know about your pump stations and when do you want to know it? Alarms Pump failure Abnormal wet well level Generator failure Power failure Pump Run Status Pump Run Time Running Pump Amp Draw Wet Well Level Rain Do you need to be able to control anything? What does a SCADA system do? Collects Transmits Processes 8

9 What are the options? Telephone Cellular Radio Licensed Non-Licensed Cable / Internet, Ethernet Satellite Granny What does a SCADA system do? Collects Transmits Processes 9

10 Processes What do you want to know about your pump stations and when do you want to know it? Is a phone call when there is a problem sufficient for your needs? or Do you want to know what is happening as it happens? Monitor only application. Control applications must be real time. Real time information possibilities 10

11 Processes What do you want to know about your pump stations and when do you want to know it? Do you want to know what is happening as it happens? Why not, if it is within the budget. What does a SCADA system do? Collects Transmits Processes How does it do the What? What hardware choices are available? 11

12 A N A L O G Collection Equipment D I G I T A L Can the number of inputs be expanded? How does it do the What? Collects Transmits Processes 12

13 Autodialer What is it? Preprogrammed / Special Purpose PLC Collect multiple channels of information Communicates via phone line Event notification only Autodialer Why is it good? Simple Easy to install Easy to program Inexpensive Great for small # of site applications 13

14 Autodialer Why is it bad? Limited functionality Alarm events only Limited inputs Uses outside infrastructure One communication method - Voice Monthly costs Phone bills Cellular Dialer What is it? Preprogrammed / Special Purpose PLC Collect multiple channels of information Communicates via cellular data network Event notification & limited analysis / trending 14

15 Cellular Dialer Why is it good? Simple Easy to install Easy to program Inexpensive Great for small # of site applications Cellular Dialer Why is it bad? Limited functionality Alarm events & limited reporting Limited inputs Uses a minimum of 2 different outside infrastructure 15

16 Cell Network #1 Provider s Server Cell Network #1 or #2 Cellular Dialer Why is it bad? Limited functionality Alarm events & limited reporting Limited inputs Uses a minimum of 2 different outside infrastructure Monthly costs 16

17 Radio System What is it? Generic PLC programmed to the application Collect largest number of channels of information Generic radio PC or Server for collection and display of information Radio System Why is it good? Provides real time data Provides analysis of any connected process 17

18 Radio System Why is it good? Provides real time data Provides analysis of any connected process No monthly costs No external infrastructure No proprietary equipment Larger numbers of I/O s Can also do control of connected processes 18

19 Operation Control Why is it bad? Higher capital cost 19

20 CTU Why is it bad? Higher capital cost PLC must be programmed Locally integrated Service after the installation More Complicated 20

21 How does it do the What? Collects Transmits Processes Process Is information easily accessible? Real time and Historical 21

22 Process Is information easily accessible? Real time and Historical How are alarms sent out? Text s Phone calls Reports that you can use? 22

23 What were the questions? How many places do you need to collect information from? What do you want to know about your sites and when do you want to know it? Is a phone call when there is a problem sufficient for your needs or would you prefer to know what is happening as it happens? Do you have to control any equipment remotely? 23

24 What are the other questions? How often does it transmit data? Are there costs associated with transmissions? Are they fixed or can they vary? When, how, and where can I access my information? Are there costs associated with this? Can I access real time data and historical? What are the other questions? Can I expand and modify the system as my needs change? Can I do these expansions myself or do I have to hire the supplier or a contractor to do so? Are my future costs fixed or variable? Communication Software Hardware 24

25 What are the other major items besides those questions? System Reliability Outside vs. Inside infrastructure Hardware Obsolescence Software Support Training, Modifications, Updates (Costs) Who is going to service it after the sale? What is that service going to cost? Disclaimer The manufacturers products used in this presentation are for examples only. These products may have greater or fewer capabilities then the text that accompanies the products photo. The information presented is based on general information readily available in the water and wastewater industry. 25

26 Precision Systems We are a 30+ year old company that manufactures a multitude of products for the water and wastewater industry. We became the nationwide distributor for Scadata Scientific for this industry in The Scadata-Pac is a hybrid of the SCADA market featuring an that installs as easily as a dialer but contains the functionality of a PLC. We are represented by Gasvoda & Associates in Northern Illinois 26

27 Thank you to the IL AWWA for the opportunity to visit with you today. 27